Re: proposed access modifier "silent" ... was: Re: [PHP-DEV] Implicit isset/isempty check on short-ternary operator

I might come off rather crumudgeonly here, but these last few threads I've seen going across to silence notices have a common theme - "I wanna be a lazier coder." Which is fine - set the PHP error level to not show them. But don't ask the engine to be rewritten to encourage bad coding practices which failing to properly initialize variables is a prime example of. It's this sort of thinking that got register_globals and magic_quotes put into the language no doubt. In the long run it's an extremely bad idea and needs to be avoided. -1 On Mon, Apr 11, 2011 at 9:36 AM, Etienne Kneuss <etienne@immomigsa.ch>wrote: > On Apr 10 21:22:58, D. Dante Lorenso wrote: > > The problem with implementing "ifsetor", "filled", or "??" > > in userland > > is that the "not set" or "undefined" warning is fired before the > > variable is passed to the underlying function/method. > > > > Is it possible to add a modifier that turns off warnings for undefined > > variables whenever that specific method is called? Something like: > > Short answer is no. See below. > > > > > class Utility { > > public silent function filled() { > > $args = func_get_args(); > > foreach ($args as $arg) { > > if (!empty($arg)) { return $arg; } > > } > > return false; > > } > > } > > > > $x = Utility::filled($my_undef, $x['undef'], $nosuch, 'default'); > > > > The modifier "silent" will turn all undefined or "not isset()" > > variables > > into NULL values when being passed to the method and no warnings will be > > issued. > > This is not really possible without some major changes. You've to > understand that arguments are evaluated before the function/method call. > The notices are thus emited before even considering the function/method > call. > > This is exactly why isset and empty are not functions, but language > constructs, so that they can work with variables in a special way. > > > > > Then, we can build our own damn functions as we see fit without the fuss. > > > > -- Dante > > > > -- > > PHP Internals - PHP Runtime Development Mailing List > > To unsubscribe, visit: http://www.php.net/unsub.php > > > > -- > PHP Internals - PHP Runtime Development Mailing List > To unsubscribe, visit: http://www.php.net/unsub.php > >